Lovato Chris Y, Hsu Helen C H, Sabiston Catherine M, Hadd Valerie, Nykiforuk Candace I J
Department of Health Care and Epidemiology, University of British Columbia, 5804 Fairview Avenue, Vancouver, BC V6T 1Z3.
Can J Public Health. 2007 Jul-Aug;98(4):265-70. doi: 10.1007/BF03405400.
Point of Purchase (PoP) promotional and advertising activities are a sophisticated tobacco marketing strategy. This study describes tobacco PoP activities in school neighbourhoods and compares PoP activities in retail stores between schools with high and low smoking prevalence.
A cross-sectional study was conducted in 81 randomly selected schools across five provinces. Students in grades 10-11 completed a questionnaire on smoking. Observations were made in all retail stores located within a one-kilometre radius around the school. ANOVA tests were used to detect differences on PoP variables between high (> 20.6%) and low (< or = 20.6%) smoking prevalence schools, defined as percentage of students reporting at least a few puffs on > 2 days in the last 30 days.
Approximately half of retail stores in each school neighbourhood exhibited tobacco PoP activities. Average school smoking prevalence was 20.99%. There were significant main effects on PoP variables between schools with high and low smoking prevalence, Wilk's lambda = 0.81, F (6,74) = 2.89, p < 0.01, eta2 = 0.19. Stores near schools with high smoking prevalence had significantly lower prices per cigarette (F (1,79) = 15.34, p < 0.01, eta2 = 0.16), more in-store promotions (F (1,79) = 6.73, p < 0.01, eta2 = 0.08), and fewer government-sponsored health warnings (F (1,79) = 6.26, p < 0.01, eta2 = 0.07) compared to schools with low smoking prevalence.
Higher levels of PoP activities in stores located in the school neighbourhood are related to school smoking prevalence. Schools with low smoking prevalence had more stores that posted government health warning signs and higher cigarette prices. Legislation regulating PoP activities and health warnings in school neighbourhoods should be considered.
购买点（PoP）促销和广告活动是一种复杂的烟草营销策略。本研究描述了学校周边地区的烟草购买点活动，并比较了吸烟率高和低的学校附近零售店的购买点活动。
在五个省份随机选择的81所学校中进行了一项横断面研究。10至11年级的学生完成了一份关于吸烟的问卷。对学校周围半径一公里内的所有零售店进行了观察。方差分析用于检测吸烟率高（>20.6%）和低（≤20.6%）的学校之间购买点变量的差异，吸烟率定义为在过去30天内报告至少有几天吸过几口烟的学生百分比。
每个学校周边地区约一半的零售店开展了烟草购买点活动。学校的平均吸烟率为20.99%。吸烟率高和低的学校之间在购买点变量上存在显著的主效应，威尔克斯λ=0.81，F（6,74）=2.89，p<0.01，η²=0.19。与吸烟率低的学校相比，吸烟率高的学校附近的商店每支香烟价格显著更低（F（1,79）=15.34，p<0.01，η²=0.16），店内促销活动更多（F（1,79）=6.73，p<0.01，η²=0.08），政府赞助的健康警示更少（F（1,79）=6.26，p<0.01，η²=0.07）。
学校周边商店中较高水平的购买点活动与学校吸烟率有关。吸烟率低的学校有更多张贴政府健康警示标志的商店和更高的香烟价格。应考虑制定规范学校周边地区购买点活动和健康警示的立法。
